公开(公告)号：EP1199348A1

公开(公告)日：2002-04-24

申请号：EP01124796.2

申请日：2001-10-17

申请人： Nippon Mitsubishi Oil Corporation

发明人： Osumi, Tomomasa, c/o Nippon Mitsubishi Oil Corp. ,  Takigawa, Katsuya, Nippon Mitsubishi Oil Corp.

IPC分类号： C10M107/34 ,  C10M171/00

CPC分类号： C10M171/008 ,  C10M107/34 ,  C10M2201/00 ,  C10M2201/061 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2209/107 ,  C10M2209/1075 ,  C10N2220/02 ,  C10N2220/021 ,  C10N2220/306 ,  C10N2240/00 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66

摘要： A refrigerating machine oil for a carbon dioxide refrigerant according to the invention is a refrigerating machine oil comprising polyalkylene glycol represented by the following general formula (1) :

        R 1 {-(OR 2 ) n -OH} m      (1)

[where R 1 represents a residue of an organic compound having a hydroxyl group, from which the hydroxyl group has been removed, R 2 an alkylene group, and m and n respective integers], wherein a number average molecular weight of the polyalkylene glycol is not less than 500 nor more than 5000, wherein a rate of ethylene group among the alkylene group in the polyalkylene glycol is more than 0 and not more than 80 mol%, and wherein a rate of molecules in which the alkylene group bonded to a terminal hydroxyl group in the polyalkylene glycol is an ethylene group, is not more than 20 mol%.

摘要翻译： 根据本发明的用于二氧化碳制冷剂的冷冻机油是包含由以下通式（1）表示的聚亚烷基二醇的冷冻机油：R 1 - （OR 2）n-OHümÄ其中R <1 >表示具有羟基的有机化合物的残基，其中除去羟基，R 2为亚烷基，m和n各自为整数，其中聚亚烷基二醇的数均分子量不小于 500以上5000以下，其中，聚亚烷基二醇的亚烷基中的亚乙基的比例大于0且为80摩尔％以下，其中与末端羟基键合的亚烷基的比例 在聚亚烷基二醇中是亚乙基，不大于20摩尔％。